Loose-leaf binder and the like



R. L. ESSON.

LOOSE LEAF BINDER AND IHE LIKE.

APPLfCATl ON FILED sen-.3. I921.

1,426,468. Patented Aug. 22, 1922. v

ROBERT LYeEaTw-oo'n ne,soi\ or ioHAnNEssn-ee.raensvaan,sovrrllernrozirLoose- EAF BINDER are THE LIIKE, v

To aZZ whom it may concern:

Be it known that I, Bonner LYona'rwoon Essen, a subject of the King ofGreat Britain, and resident of Johannesburg,

Transvaal Province, Union of South Africa, have lnvented certain new anduseful Improvements Appertaining to Loose-Leaf Binders and'the like, ofwhich the following is a specification. j v

This invention appertains to looseleaf binders, loose-leaf ledgers andthe like.

It has been more especially designed for use with that type of binder inwhich the means or mechanism for contracting-antler;- panding the backof the binder includes a rod or spindle having right and left-handthreaded portions, on which are mounted niits which are caused to travelalong the rod or spindle when the latter is rotated by a'key. It can,however, be used with. other binders in which a rotatable rod or splndleis em )lo "ed for actuatin the ad'ustin y a: r;

mechanism. p I

The present improvements relate to the construction of the key and thatportion of the rod or spindle with which it engages.

The object of the inventionis to improve the construction of the keyandthe means whereby it co-operates, with the rod or spindle, to ensurethat'the key shall effectively engage the end thereof, and to pro vide astrong and durable key of simple and inexpensive construction. T

The invention will be fully described in connection with theaccompanying drawings, wherein- Fig. 1 is an elevation'of the key.

Fig. 2 is a plan view of the same.

Fig. 3 an end elevation, and

Fig. 4- a view of portion of'the end of the rod or spindle with whichthe key co-operates. v j

In the constructionof-the key I employ a barrel or main portion 1 whichis of hollow or tubular construction for a portion of its length, asindicated at 2, and is adapted to engage with or be projected over theend of the rod or spindle 3-see Fig. 4.

In the barrel portion 1 and near the outer rear portion, maybe fashionedwith a flat 5, and at the rear end of the fiat with a re cess 6. Uponthe barrel 1 there is arranged a suitably shaped spring piece 7, whichat its forward end is formed with a projection Specification of LettersPatent.

, I I I Patented Applicationfiled se tembere, 1921.1 SeriaI No. 4%,21 1.'i it 8 which projects through the slot l, formed in the front portionof the barrel 1, and enters the interior oftheybarrel. ection 8 may beof'anysuitable shape, being preferably rounded or curij ed 011 the innerface 111 a directlonlongitudinally of the This pro-v barrel, as shown.,The rear portion of the i I spring piece? lies on the fiat5, and. the;rear end is bent to-.fit into the recess '6, formed at the rear I isfixed.

By rounding or" curving the-projection".8,

and thegroove 9, the former falls" into and engages thelatter when thebarrel is pushed over the-endof the rod or spindle. The

'projecition'8 is firmlyheld in. engagement of the flat 5,in whichrecess with the groove .9, the action (If the '1 Spring o f'thespringpiece: 'r' and th kfly can bethen: turned to rotate the rod or spindle.In pulling the key oil the rod or spindle, the, curved projection 8 willride up the curved bottom of the groove 9 against the force of thespring," and so disengage] the slot 4;. I r

Atthe rear end of the barrel portion 1, a handle or means is providedfor rotating the key. Such means may, as shown, be in j the form of athumb or wing piece 10, fitted into a recess or groove llyin the lend ofpart1, and secured'to the barrel 1 by means recessed as" shownati13 toproject over the rear end of the spring'piece'7, and serve asa means forsecuring the end of said piece in the, recess 6. It will be evident thatthe I of rivet or pin 12. The handle 10, maybe handle may beformedinteg-ral with the barrel andthat it may be in; the formof a crankhandle or be otherwise shaped, as pre-- ferred; and that the springpiece couldberetained in operative position in any other preferredmanner.

to protect by Letters Patent is 1. In loose-leaf binders, akeycomprising'j aportion whichisadapted to fit over the What I claim as myinvention, and desire end of the rod or spindle of the adjusting Imechanism, and ---a spring-actuated piece which is yieldingly carried bysaid portion and-is adapted to engage'with that part of fits. I

the, rod or spindle overwhich said portion 2.. In loose-leai binders, arey comprising a portion which is adapted to fit over the end of the rodor spindle of the adjusting mechanism, and a spring-actuated piece whichis yieldingly carried by said portion. and is adapted to engage withthat part of the rod or spindle over which said portion fits, saidspring-actuated P1606 being provided with a longitudinally curved orrounded pro ection, on the inside, to fit a 'correspondinglyshapedgroove in the end of the rod or spindle ofthe adjusting mech- 'anism.

'3. In loose-leaf binders, a key comprising a portion which is adaptedto lit over the end ofthe'rod orspindle of the adjusting mechanism and aspring piece which is ieldingl carried b I said aortion and is the rodor spindle over which said portion fits, said spring-actuated piecebeing pro- "vided with a longitudinal projection on the\ correspondlnglyshaped groove inside, toi U- a in the end of the rod or spindle of theadjusting mechanism the barrel portion of the hey being constructed witha longitudinal slot tor the projection on the spring-actuated piece. i

5. In loose-leaf binders, a key comprising a portion which is adapted tofit over the end of the rod or spindle of the adjusting mechanism, and aspring-actuated piece which is yicldingl carried by said portion and isadapted to engage with that part of the rod or spindle over which saidportion fits said spring-actuated piece being provided with alongitudinal projection on the inside, to'fit a correspondingly shapedgroove in the end of the rod or spindle or the adjusting mechanism, thebarrel portion of. the hey being constructed with a longitudinal slotfor the projection on the springactuated piece, and with a recess toreceive the rear end of the spring piece, so that the ,latter isretained in position by means of the handle. l j

in testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

i RUBERT LYGERTWGQD ESSUN.

Witnesses:

L. A. Ginsnnne,

Vina W. K. VESTON.

